Used.....Cosmetic wear can be found from previous used. 100% mechanically functional , no leaks or any major concern. No need to bled ready to go , new resin pads , no worries return is accepted if not as describe. Claimed the lightest brake Shimano ever made . The body is made of magnesium , lever is made of carbon...This is a rear or right only brake ....I will provide the hose measurement later. PayPal only...